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(: Test: K-NodeSame-6                                    :)
(: Written by: Frans Englich                             :)
(: Date: 2007-11-22T11:31:21+01:00                       :)
(: Purpose: A query reminding of an invokation of 'is' operator. However, this is not a parse error(XPST0003), because it is a valid function call, although to a non-existant function. 'is' is not a reserved function name. :)
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is ()